Re: [PATCH] Change ZERO_SIZE_PTR to point at unmapped space

From: Linus Torvalds
Date: Sat May 30 2009 - 18:30:19 EST

On Sat, 30 May 2009, Larry H. wrote:
> The ZERO_OR_NULL_PTR macro is changed accordingly. This patch does
> not modify its behavior nor has any performance nor functionality
> impact.

I'm sure it makes a code generation difference, with (a) big constants and
(b) no longer possible to merge the conditional into one single one.

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